I use dual swords. I also have a Darkstarr patterned chain chest piece like margaritte. I've most recently experienced this mining in Graff's Gem Mine. To reproduce you might try this: 1. Start mining a node. 2. Turn so that you are looking at your av from the side or front or else you might not notice a change of orientation. 3. Let a Earth Elemental attack you while you continue to mine. When you get interrupted and start to defend yourself you 'might' notice a changed orientation after the fight. If you were looking your av in the face while he/she mined you may now look like you are walking backward... maybe... It is hard to tell when the change happens; right when you get interrupted or sometime during the fight? It doesn't happen every time, in fact not very often, but often enough to be annoying as you have to leave and re-enter the scene to re-orient.